I went to do the upgrade to 7 and then found out I couldn't upgrade from Vista Home Premium to 7 Professional, so I had to wipe my drive to do it. Thankfully I set up the laptop with 3 partitions (system, data, temporary files) so replacing vista was a doddle. I did, however, forget to backup my firefox bookmarks, so I'm trying to remember where I actually go on the internet (turns out I don't seem to need the bookmarks anyway). That's because you can't upgrade between different editions like that. You can only upgrade to like-for-like versions. I.e.: Home Premium to Home Premium, Pro to Pro etc. This also applies for 32bit and 64bit. If you have the retail version then you can do as I did above. I upgraded from vista home to win7 pro. This is not a true upgrade as it just saves the entire contents of your vista installation to a folder. 32bit to 64bit may be a problem with this.